1 // Copyright 2013 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 // This file implements sysSocket and accept for platforms that do not 6 // provide a fast path for setting SetNonblock and CloseOnExec. 7 8 // +build darwin nacl netbsd openbsd solaris 9 10 package net 11 12 import ( 13 "internal/poll" 14 "os" 15 "syscall" 16 ) 17 18 // Wrapper around the socket system call that marks the returned file 19 // descriptor as nonblocking and close-on-exec. 20 func sysSocket(family, sotype, proto int) (int, error) { 21 // See ../syscall/exec_unix.go for description of ForkLock. 22 syscall.ForkLock.RLock() 23 s, err := socketFunc(family, sotype, proto) 24 if err == nil { 25 syscall.CloseOnExec(s) 26 } 27 syscall.ForkLock.RUnlock() 28 if err != nil { 29 return -1, os.NewSyscallError("socket", err) 30 } 31 if err = syscall.SetNonblock(s, true); err != nil { 32 poll.CloseFunc(s) 33 return -1, os.NewSyscallError("setnonblock", err) 34 } 35 return s, nil 36 } 37
